Cheap Flights from Washington D.C. to Helsinki from €357

Frequently Asked Questions

• What are the cheapest flights from Washington D.C. to Helsinki (WAS-HEL)?

  Based on Trip.com data, Lufthansa offers one-way fares as low as €310 on Cheapest nonstop routes (e.g. IAD to HEL on Mon, Dec 29), while Icelandair offers Cheapest nonstop round-trips from €357 departing on Thu, Jan 15 and returning on Mon, Jan 19.

• Which airlines offer flights from Washington D.C. to Helsinki?

  At the moment, several airlines serve connecting flights from Washington D.C. to Helsinki, including: Scandinavian Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

• When is the best time to book flights from Washington D.C. to Helsinki?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Washington D.C. to Helsinki is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Washington D.C. to Helsinki?

  To find best deals on flights from Washington D.C. to Helsinki, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Mon, Dec 29, with one-way flights priced at just €310.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Lufthansa.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Helsinki travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Washington D.C. (WAS) to Helsinki (HEL) the cheapest?

  The cheapest months to fly from Washington D.C. to Helsinki is November, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Washington D.C. to Helsinki on?

  After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Washington D.C. to Helsinki on November 28, 2025 with Icelandair, with prices starting at €334.

• Which airports can I fly to for Helsinki from Washington D.C.?

  You can land at any one of the following hubs in Helsinki, with Dulles International Airport to Helsinki Airport (IAD-HEL) is by far the most common option on this route: Helsinki Airport (HEL).

• Is there any time difference between Washington D.C. and Helsinki?

  The time difference between Helsinki and Washington D.C. is 7h.

• How do I change or cancel my ticket from Washington D.C. to Helsinki?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.